Highly Stable Carbon Nanotube/Polyaniline Porous Network for Multifunctional Applications

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• 作者：Wenqi Zhao ; Yibin Li ; Shiting Wu ; Dezhi Wang ; Xu Zhao ; Fan Xu ; Mingchu Zou ; Hui Zhang ; Xiaodong He ; Anyuan Cao
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：December 14, 2016
• 年：2016
• 卷：8
• 期：49
• 页码：34027-34033
• 全文大小：533K
• ISSN：1944-8252

文摘

Three-dimensional carbon nanotube (CNT) networks with high porosity and electrical conductivity have many potential applications in energy and environmental areas, but the network structure is not very stable due to weak inter-CNT interactions. Here, we coat a thin polyaniline (PANI) layer on as-synthesized CNT sponge to obtain a mechanically and electrically stable network, and enable multifunctional applications. The resulting CNT/PANI network serves as stable strain sensors, highly compressible supercapacitor electrode with enhanced volume-normalized capacitance (632 F/cm³), and reinforced nanocomposites with the PANI as intermediate layer between the CNT fillers and polymeric matrix. Our results provide a simple and controllable method for achieving high-stability porous networks composed of CNTs, graphene, or other nanostructures.